Good progress is being made. The only things left now are text edits, and her background image, which I'm drawing from scratch
My first attempt at delving into Puyo Puyo Tetris modding, replacing Ringo with the bright, bubbly Literature Club Vice President, Sayori, from Doki Doki Literature Club. Since Ringo and Sayori have similarly styled outfits, Ringo's sprites can easily be tweaked and redrawn to resemble Sayori.
Upon release, the mod will come with all the UI, cut-in, background, and text replacement goodies.